Sealant for hydro project??

zatoichi2 · Jul 28, 2012

What sealants are considered safe for contact with hydro solution????

Want to do a vinyl fence post project, but want to be able to check the spray heads frequently, since I have had problems with them clogging. Want to use something like silicone on one end for inspection and maintenance, but worry about VOC's in the sealants.

If this is a non-issue, let me know.

Was just thinking, the amount of water that will be in the fencing will be insignificant. Will seal the drain end with vinyl fencing sealer, and maybe just duct tape the cap on the other end. Possibly use some kind of silicone, and just replace when needed. Possibly also putting screening around the pump inlet would keep crap out of the spray heads.

Any suggestions would be appreciated.

zatoichi2 · Jul 29, 2012

Is painters tape bad to come in contact with hydro solution?

cannabineer · Jul 29, 2012

I would use a two-component epoxy without solvents. They're considered food-safe. cn

cannabineer · Jul 29, 2012

zatoichi2 said:
Is painters tape bad to come in contact with hydro solution?

It's probably worse for the tape than the solution. Jmo. cn

zatoichi2 · Jul 29, 2012

cannabineer said:
I would use a two-component epoxy without solvents. They're considered food-safe. cn

Could you give me an example of one??? Thanks for the info!!!!!

zatoichi2 · Jul 29, 2012

cannabineer said:
It's probably worse for the tape than the solution. Jmo. cn

Building an aeroponic vinyl fence post rig tonight. Instead of running the water in through the cap, want to go through the top. Want to be able to disassemble for inspection and cleaning. Was going to use the painters tape on the pvc pipe going into the vinyl fence, where the feed goes into the fence, to tighten seal. The tape would be replaced at least once a week, or when I notice the heads not spaying properly.

Will seal the drain end with the stuff that comes with thee caps. The other cap, on the inside, I am thinking of weather strips, around the contact area, and then just tape it shut. Not really worried about a few drops of water, as much as ruining my experiment, by introducing poisons.

Thanks again, for your expertize.

zatoichi2 · Jul 29, 2012

cannabineer said:
I would use a two-component epoxy without solvents. They're considered food-safe. cn

Would home depot have that? Would that be one of those dual syringes??

Thanks.

GreenThumbSucker · Jul 29, 2012

zatoichi2 said:
What sealants are considered safe for contact with hydro solution????

Want to do a vinyl fence post project, but want to be able to check the spray heads frequently, since I have had problems with them clogging. Want to use something like silicone on one end for inspection and maintenance, but worry about VOC's in the sealants.

If this is a non-issue, let me know.

Was just thinking, the amount of water that will be in the fencing will be insignificant. Will seal the drain end with vinyl fencing sealer, and maybe just duct tape the cap on the other end. Possibly use some kind of silicone, and just replace when needed. Possibly also putting screening around the pump inlet would keep crap out of the spray heads.

Any suggestions would be appreciated.

My rule of thumb is to use sealants or adhesives that are for potable (drinking) water applications. If it is safe for that, it is safe for hydroponics.

zatoichi2 · Jul 29, 2012

GreenThumbSucker said:
My rule of thumb is to use sealants or adhesives that are for potable (drinking) water applications. If it is safe for that, it is safe for hydroponics.

That is what I have been looking for, but hard to find at home depot. Most are for sealing around counters and showers. For PVC there is cement, but want to disassemble for cleaning. Not sure if silicone products (which are abundant) are safe. Have read many packages that talk of dangers from the product, which probably goes away after curing.

Thank you for your help!!!!!

cannabineer · Jul 29, 2012

zatoichi2 said:
Would home depot have that? Would that be one of those dual syringes??

Thanks.

The dual-syringe ones work, but you can buy larger portions at a steep quantity discount if you get the cans. cn

Smokemota69 · Jul 30, 2012

http://www.petco.com/product/4114/All-Glass-Silicone-Aquarium-Sealant.aspx

this is what i use

also my suggestion on top feeding in fence posting is, get 1/2 grommets and 1/2 vinyle hose. drill out ontop with a unibit and fit the grommets inside with tube inside grommet. i ran stinkbuds system for aT least a year. i also used bottom drains end cap the ends and get some bulk heads works great

GreenThumbSucker · Jul 30, 2012

zatoichi2 said:
That is what I have been looking for, but hard to find at home depot. Most are for sealing around counters and showers. For PVC there is cement, but want to disassemble for cleaning. Not sure if silicone products (which are abundant) are safe. Have read many packages that talk of dangers from the product, which probably goes away after curing.

Thank you for your help!!!!!

Talk to the Home Depot guy. Tell him you need to glue white PVC for use in your greenhouse. Like you said, once it cures, the danger has evaporated away.

cannabineer · Jul 30, 2012

Oh man; i might have made life too complicated. If you are doing fairly light duty, try silicone aquarium sealant. It outgasses acetic acid, which is pretty benign and is sometimes used to adjust hydro pH. cn

Jerseykushface · Jul 8, 2016

Smokemota69 said:
http://www.petco.com/product/4114/All-Glass-Silicone-Aquarium-Sealant.aspx

this is what i use

also my suggestion on top feeding in fence posting is, get 1/2 grommets and 1/2 vinyle hose. drill out ontop with a unibit and fit the grommets inside with tube inside grommet. i ran stinkbuds system for aT least a year. i also used bottom drains end cap the ends and get some bulk heads works great

How well does this work

Airwalker16 · Jul 8, 2016

I'd think pvc cement would be... it's used in houses for water lines all the time.

justugh · Jul 8, 2016

zatoichi2 said:
What sealants are considered safe for contact with hydro solution????

Want to do a vinyl fence post project, but want to be able to check the spray heads frequently, since I have had problems with them clogging. Want to use something like silicone on one end for inspection and maintenance, but worry about VOC's in the sealants.

If this is a non-issue, let me know.

Was just thinking, the amount of water that will be in the fencing will be insignificant. Will seal the drain end with vinyl fencing sealer, and maybe just duct tape the cap on the other end. Possibly use some kind of silicone, and just replace when needed. Possibly also putting screening around the pump inlet would keep crap out of the spray heads.

Any suggestions would be appreciated.

https://www.amazon.com/Clear-Food-Grade-Silicone-Sealant/dp/B0063U2RWU

it needs 24 hours to cure but afterwards u are 100% safe
anything food grade is hydro safe ......just let it cure fully then u are good to go for anything
here
https://www.amazon.com/00688-Household-Waterproof-Adhesive-2-8-Ounce/dp/B000KE4PBQ

thenasty1 · Jul 10, 2016

aquarium silicone. it can be found at most fish/pet stores.

Jerseykushface · Jul 10, 2016

thenasty1 said:
aquarium silicone. it can be found at most fish/pet stores.

That's exactly what i just bought put it on last night it was a mess. Im gonna put another coat on tomorrow

Father Ramirez · Jul 16, 2016

No need to pay extra for aquarium grade. Any 100% silicone is safe once completely dry, but if it's thick that can take days. 11 ounce caulk tubes are easiest to work with. Wear nitrile gloves to smooth it without covering your hands. PC11 is a two part epoxy that hardens and is more durable long term. Avoid cyanoacrylates; super glue

Jerseykushface · Jul 18, 2016

Father Ramirez said:
No need to pay extra for aquarium grade. Any 100% silicone is safe once completely dry, but if it's thick that can take days. 11 ounce caulk tubes are easiest to work with. Wear nitrile gloves to smooth it without covering your hands. PC11 is a two part epoxy that hardens and is more durable long term. Avoid cyanoacrylates; super glue

Anything specific i can get to just seal up the parts that are leaking without having to drain my whole system? It just leaks here n there n i need something that will seal it while its dripping

Sealant for hydro project??

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